3x+5+7=7+2x

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Solution for 3x+5+7=7+2x equation: 



3x+5+7=7+2x

We move all terms to the left:

3x+5+7-(7+2x)=0

We add all the numbers together, and all the variables

3x-(2x+7)+5+7=0

We add all the numbers together, and all the variables

3x-(2x+7)+12=0

We get rid of parentheses

3x-2x-7+12=0

We add all the numbers together, and all the variables

x+5=0

We move all terms containing x to the left, all other terms to the right

x=-5

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